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iCE40 Oscillator Usage Guide 

 

Technical Note 
 

© 2016-2020 Lattice Semiconductor Corp. All Lattice trademarks, registered trademarks, patents, and disclaimers are as listed at 

www.latticesemi.com/legal

 

All other brand or product names are trademarks or registered trademarks of their respective holders. The specifications and information herein are subject to change without notice. 

 

 

FPGA-TN-02008-1.7 

Disclaimers 

Lattice makes no warranty, representation, or guarantee regarding the accuracy of information contained in this document or the suitability of its 
products for any particular purpose. All information herein is provided AS IS and with all faults, and all risk associated with such information is entirely 
with Buyer. Buyer shall not rely on any data and performance specifications or parameters provided herein. Products sold by Lattice have been 
subject to limited testing and it is the Buyer's responsibility to independently determine the suitability of any products and to test and verify the 
same. No Lattice products should be used in conjunction with mission- or safety-critical or any other application in which the failure of Lattice’s 
product could create a situation where personal injury, death, severe property or environmental damage may occur. The information provided in this 
document is proprietary to Lattice Semiconductor, and Lattice reserves the right to make any changes to the information in this document or to any 
products at any time without notice. 

Содержание iCE40 UltraLite

Страница 1: ...iCE40 Oscillator Usage Guide Technical Note FPGA TN 02008 1 7 December 2020...

Страница 2: ...th all faults and all risk associated with such information is entirely with Buyer Buyer shall not rely on any data and performance specifications or parameters provided herein Products sold by Lattic...

Страница 3: ...uction 5 1 1 Key Features 5 2 On Chip Oscillator Overview 5 3 I O Port Description 6 4 Connectivity Guideline 6 5 Power Management Options 8 Appendix A Design Entry 9 A 1 SB_LFOSC Usage in iCEcube2 So...

Страница 4: ...l other brand or product names are trademarks or registered trademarks of their respective holders The specifications and information herein are subject to change without notice 4 FPGA TN 02008 1 7 Ac...

Страница 5: ...illators are intended for general clocking of internal logic and state machines This document provides guidance to software engineers on integrating these two oscillator types using iCEcube2 or Lattic...

Страница 6: ...cillator After power up output is stable after 100 us Active High 4 Connectivity Guideline Both the low and high frequency oscillators can be used as a clock source and their outputs are available for...

Страница 7: ...or registered trademarks of their respective holders The specifications and information herein are subject to change without notice FPGA TN 02008 1 7 7 AP iCE40 24 MHz Reference Internal 10 kHz SB_LFO...

Страница 8: ...ademarks or registered trademarks of their respective holders The specifications and information herein are subject to change without notice 8 FPGA TN 02008 1 7 5 Power Management Options When disable...

Страница 9: ...ric routes Verilog Instantiation SB_LFOSC OSCInst1 CLKLFEN ENCLKLF CLKLFPU CLKLF_POWERUP CLKLF CLKLF synthesis ROUTE_THROUGH_FABRIC 1 the value can be either 0 or 1 A 2 SB_HFOSC Usage in iCEcube2 Soft...

Страница 10: ...of their respective holders The specifications and information herein are subject to change without notice 10 FPGA TN 02008 1 7 A 4 HSOSC Usage in Lattice Radiant Software Parameter Values The HSOSC p...

Страница 11: ...mers are as listed at www latticesemi com legal All other brand or product names are trademarks or registered trademarks of their respective holders The specifications and information herein are subje...

Страница 12: ...rch 2020 Section Change Summary All Added primitives for Lattice Radiant Software Disclaimers Added this section Revision 1 4 September 2017 Section Change Summary All Changed document number from TN1...

Страница 13: ...www latticesemi com...

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